Sash-fastener.



I FRANK LR. KRATZENBERG, OF NEW YORK, N. Y.

SASH-FASTENER.

To-altahom it may concern:

Be-rtknown that I, FRANK R. KRATZEN- BERG,$;'C1t1 ZeIl- Of the United States,and a reside'nt of the borough of Bronx, county,

city; State of New 1 ork, have invented certain new and useful Improvements in Sash-Fasteners, asset forth in the following specification.

-' This invention relates to means for secur iiig window sash, which means may be termed a sash-fastene An object of the invention is to improve the" general construction of a sash-fastener; to

provide a sash-fastenerwhich is invisible from outside the window; to insure against theunfastening or picking of the fastener, as by burglars; and to provide such a means which is cheap, eflicient and applicable to window sash with convenience and despatch. These and other objects of ,the invention will be clear from the following description and claims when read in connection with the accompanying drawings, which form part of this application, in which like characters indicate corresponding parts, and in which Figure 1 is an interior elevation of the top and bottom sash of a' window'construction, with parts broken away and showing the aplication thereto of the invention; Fig. 2 is a orizontal section on line IIII of Fig. 1; Fig; 3 is enlarged section through the vertical side rail of a to sash, showing the latch member in top p an; Fig. 4 is a front elevation of the latch membropenedout so as to show its pattern; Fig. 5 isa top plan view of the cooperating combined stop and catch member; Fig. 6 is a sectional elevation through the parts shown in Fig. 5; Fig. 7 is a view corresponding to Fig. 5, but showing a modification and Fig. 8 is a front elevation of the parts shown in Fig. 7.

Referring now more in detail to the drawings, 1 and 2 indicate respectively the top and bottom sash of a wel known window construction, fitted to slide in the frame pieces 3 and 4.. g

5 and '6 indicate the vertical side rails of the top sash 1, the bottom rail of which is indicated 'by 7. The top rail of the bottom sash is indicated by 8 and-the side rails by 9 and 16.

In Fig. 1 what may be termed a left handed embodiment of the invention is indicated by 11, while a right handed embodiment is indicated by 12. The right and left hand embodiments may be precisely similar and bear the Specification of Letters Patent. A Application filed September 14, 1908 Serial N0.,4.52,821.

the exterior.

to thebase plate 13.

Patented June 8, 1909.

same relation to one another that right and left hands bear to each other, and are shown merclyfor purposes of illustration. While the left handembodiment will be illustrated and described in detail, it is to be understood that the same details apply equally well to the right hand embodiment, as will be understood.

The latch member is shown most clearly in Fig. 4 and comprises a base plate 13, which in ay be suitably pierced to receive attaching screws 14. It is contemplated that the base 'plate 13 be secured to the inside face of one of the vertical rails of the top sash, as the rai1s 5 or 6. It maybe secured so as not to be visible from outside the WIDClOVV, thatis, so

that the rail 5 completely conceals it from A hinge 15 is rovided along theside vertical edge of the p etc 13 and the swinging latch plate 16 is secured along a corresponding vertical edge by the hinge 15 If desired, the latch plate 16 may have a curved oil'set lip 17, provided with a finger hold 18 projecting upwardly. It is to be understood, however, that the contour of the plates 13 and 16 may be modified at will, it being borne in mind that the axis of the hinge should be substantially vertical as indicated. A cooperating member is provided for the latch member and may be designated as a combined stop and catch member, being shown in detail in Figs. 5-8 inclusive.

Fig. 6, it being understood. that for the pur poses of this invention the catch tongue 21 is considered as yieldingly hinged to the plate 19. In the particular embodiment shown,

the tongue 21 is cut out of the plate 19 and sprung upward into operative position as shown. A stop 22 may be conveniently formed also by striking up a portion of the plate 19, as indicated.

In Figs. 7 and 8, a modification of the combined stop and catch member is lllus- .trated. In this modification, the plate 23 corresponds to the plate 19, but the yielding tongue 24 is located along one side of the plate 23, as shown, and may be formed by means of two outs instead of three, as 18 neccertain'clearance is provided between the inside-faces of the vertical side rails 5 and 6 in the top sash and the nearest edge of the top rail 8 of the bottom sash.' It is within this spacethat the latch member l3, 16 is to be situated. When in non-latching position, it is foldedup as indicated in Figs. 2 and 3, so that the raising of the lower sash 2 may be eflected at will, with the rail 8 easily clearing the plate 16. To look the sash the lip 17 or the finger hold 18 may be manually engaged to swing the plate 16 out -into the position shown in Fig. 1. During this swinging movement, its lower edge 26 rides over and depresses the catch 21 or the' catch 24, as the case may be, the-stop 22 01*25 limitin itsswinging movement, whereupon the catch 21 or 24 springs u and serves as astop to prevent the unloc zing swing of the latchlate. To unlock the latch, a simple manuai manipulation serves to depress the catch, and at the same time swing the latch plate from the position shown in Fig. l to the position shown in Figs. 2 and 3.

A Window construction provided with a sash fastener of the type described would ap pear from the exterior to have no fastening whatsoever, and it is contemplated that it would be more than likely that any attempted unwarranted entry through the window would be accompanied by considerable carelessness due to the apparently. un-' secured sash, and that this would result in the giving of an alarm to the occupants of an apartment.

Although-several embodiments of the invention have been illustrated and described,

it is to be understood that these are subject to modification and that the various features shown and described may be combined in other combinations than those illustrated within the scope of the accompanying claims.

The sash fastener may be made satisfactorily and economically of sheet metal which may be stamped into form with convenience and despatch, although it is to be understood that other materials and modes of manufacture may be employed if desired.

WVhat is claimed and what is desired to be secured by United States Letters Patent is:

1. In a sash fastener a swinging part to be hinged along a vertical edge toa vertical top sash rail; and a cooperating stop member to be secured to the top horizontal rail of the bottom sash, said stop member comprising a catch for the said swinging part movable into and out of catching position.

2. In a sash-fastener latch member eomprising two plates hinged together along vertical edges; and a stop member comprising an en ageable and disengageable catch.

3. Iii combination with window sash, a base plate secured to the inner face of a vertical rail of a top sash; a swinging latch plate hinged along a vertical edge to said base plate; a combined stop and catch member secured to the top rail of the bottom sash to cooperate with said latch plate, the catch of said combined member being movable into and out of catching position.

4. A sash-fastener comprising a latch member having a flat sheet metal base plate and a sheet metal latch plate hinged together; and a cooperating catch member having a sheet metal base plate and an integral upturned depressible catch.

In testimony whereof, I have signed my name to this specification, in the presonceof two subscribing witnesses.

FRANK R. KRATZENBERG.

Witnesses EDsoN B. SAMMIS, C. E. HANSELMANN. 

